Paulus, Sokolowski and Sartor (PS&S)

What Paulus, Sokolowski and Sartor (PS&S) does

Paulus, Sokolowski and Sartor (PS&S) is a privately held, full-service architecture, engineering, surveying, and environmental consulting firm founded in 1962 and headquartered in Warren, New Jersey. The firm is family-led under second-generation Sartor ownership and operates nine regional offices across New Jersey, New York, Pennsylvania, and North Carolina, supported by 251-500 employees that include 55 licensed engineers and 14 licensed architects. PS&S serves both public-sector clients (school construction authorities, municipalities, sewerage authorities, and state agencies) and regulated private-sector clients across pharmaceuticals/life sciences, education, real estate, energy/utilities, and healthcare, with named engagements spanning Bristol-Myers Squibb, dsm-firmenich, Lockheed Martin, Lennar, Horizon Blue Cross Blue Shield of New Jersey, Hackensack Meridian Health, Conifer Realty, Cooper University Health, the Philadelphia Zoo, and Gelest.

The firm monetizes through project-based professional services agreements, qualifications-based public-sector selections, and recurring framework work with long-tenured clients in regulated industries. Revenue is anchored in East Coast geographies, with 2025 worldwide revenue of $63.89M (East region $61.80M), reflecting 9.8% year-over-year East regional growth. Delivery is built on licensed-professional capacity and multi-decade client relationships rather than proprietary technology, with technical capability extending across civil, structural, mechanical/electrical/plumbing, environmental, and surveying disciplines. Named an Engineering News-Record (ENR) New York Design Firm of the Year for 2026 and ranked among the top 15 national engineering firms serving the pharmaceutical sector, the firm positions itself within the upper tier of regional A&E consultancies.

Growth has been delivered through a combination of organic expansion and a sustained tuck-in M&A program (DW Smith in 2019, B. Thayer in 2022, Becica and Stout & Caldwell in 2024, an Allentown, PA office in 2025, and announced Priest Craven and Marathon transactions in 2026), broadening both geographic footprint and service mix. Early-stage technology initiatives include a Duke University AI proof-of-concept using internal timesheet data and a Coprata partnership on smart-toilet sensing, indicating nascent exploration of data and sensor-enabled service offerings rather than a technology-led business model.

Name

Paulus, Sokolowski and Sartor (PS&S)

Legal name

Paulus, Sokolowski and Sartor, LLC

Website

https://psands.com

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

251–500 employees

Short description

PS&S is a privately held, full-service architecture, engineering, surveying, and environmental consulting firm founded in 1962, operating nine offices across New Jersey, New York, Pennsylvania, and North Carolina, serving public-sector agencies and regulated private-sector clients in pharmaceuticals, healthcare, education, real estate, and energy.

Ownership category

akta.pro rank

Headquarters

HQ city

Warren

HQ country

United States

HQ region

North America

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Professional Services - Architecture: Full-service architecture design services for public, corporate, institutional and commercial clients across market sectors including education, healthcare, real estate, and public facilities.
2. Professional Services - Engineering: Engineering design services including site civil, structural, MEPF, water resources, process engineering, and environmental engineering for diverse project types.
3. Surveying Services: Professional surveying services including land survey, pipeline survey, and UAV/laser scanning capabilities for geospatial mapping and modeling.
4. Environmental Consulting: Environmental consulting services including remediation, demolition, licensing, permitting, flood hazard area construction, and regulatory compliance.
5. Construction Administration: Construction phase services providing project management, inspection, and administration support throughout project delivery.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

PS&S is a full-service architecture, engineering, surveying, and environmental consulting firm providing integrated design services across multiple disciplines, including civil, structural, MEPF, water resources, process engineering for life sciences, environmental consulting, surveying with UAV/laser scanning, landscape architecture, and cultural resources management. The firm serves public sector clients (municipalities, counties, utility authorities) and private sector clients (pharmaceutical, real estate development, healthcare, education, energy and utility) across the Northeast U.S.

Product overview

PS&S is a full-service architecture, engineering, surveying, and environmental consulting firm offering integrated design services across multiple disciplines. The company operates as a unified platform providing architecture, civil/structural/MEPF engineering, environmental consulting, survey services, cultural resources, landscape architecture, interior design, water resources, process engineering, and energy/sustainability services. The portfolio includes both core service offerings (such as Architecture Services, Civil Engineering, Environmental Consulting, Survey Services) and specialized capabilities (such as Process Engineering for life sciences, Cultural Resources/archaeology, and innovation initiatives like the Coprata smart toilet). The company serves diverse market sectors including Sci-Tech, Healthcare, Education, Real Estate, Energy & Utility, Public Sector, Advanced Air Mobility, and Water/Wastewater.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 9.8% year-over-year revenue growth from $56.24M to $61.8M regional revenue
• +3 more outcomes

Named customers16 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Duke University Pratt School of EngineeringcoreStrategic or Co-development Partner · 1 January 2024PS&S partnered with Duke University's Pratt School of Engineering for a Capstone Project where graduate students developed AI proofs of concept for business operations including querying timesheet comments, project write-up sheets, and employee resumes for proposals. CEO John Sartor serves on the industry advisory board for the master's in climate and sustainability engineering program.
• PreMiEr Engineering Research CentercoreStrategic or Co-development Partner · 1 January 2024PS&S is the first industry partner to the NSF-funded Engineering Research Center for Precision Microbiome Engineering headquartered at Duke University. The initiative spans five NC universities and focuses on preventing infectious microorganisms while promoting beneficial ones in the built environment.
• Green EmpowermentminorStrategic or Co-development Partner · 1 January 2024PS&S sponsors international water and renewable power infrastructure projects through Green Empowerment, a nonprofit that galvanizes communities to support sustainable infrastructure. Projects include a drinking water initiative in El Paraisito, Nicaragua bringing clean water to nearly 100 families.
• QuestCDNminorGTM or Marketing PartnerPS&S publishes project bid listings through QuestCDN platform, allowing access to construction and engineering project opportunities for vendors and subcontractors.

Scale indicators15 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with comprehensive engineering, architecture, environmental, and construction services. Competes for major capital projects across public and private sectors, with deep technical specialization that smaller firms like PS&S cannot match on large programs.
• WSP: Global professional services consulting firm with major engineering practice (formerly WSP | Parsons Brinckerhoff) and significant Northeast presence. Competes for large infrastructure and transportation projects, and overlaps in environmental and civil engineering services.
• Stantec: Large publicly-traded global engineering, architecture, and consulting firm with significant Northeast presence. Offers overlapping services including water, environmental, civil engineering, and architecture but operates as a broad incumbent across multiple geographies and sectors.

Direct peers

• Colliers Engineering & Design: Multi-discipline engineering, architecture, and design firm (formerly Maser Consulting) with significant Northeast presence offering civil engineering, environmental, surveying, and architecture services. Comparable private-sector-led A&E platform with similar acquisition-driven growth strategy.
• T&M Associates: Mid-Atlantic engineering, environmental, and consulting firm headquartered in New Jersey with comparable service offerings across civil engineering, environmental consulting, water resources, and surveying. Closest direct regional competitor with similar client mix of municipalities, counties, and private developers.
• Kimley-Horn: Privately held national engineering, planning, and design consulting firm with comparable multi-disciplinary practice areas including civil engineering, environmental services, and surveying. Strong overlap in market sectors like real estate development, public infrastructure, and transportation.
• CME Associates: Northeast-based engineering firm providing civil, structural, environmental, and surveying services with comparable geographic footprint across New Jersey, New York, and Pennsylvania. Direct competitor for municipal infrastructure and land development projects.
• Langan Engineering & Environmental Services: Privately held engineering and environmental consulting firm with strong Northeast presence, comparable service offerings in site civil, geotechnical, environmental, and surveying for real estate development and institutional clients. Similar private-ownership model and relationship-driven business approach.
• H2M architects + engineers: New York and New Jersey-based multi-disciplinary architecture and engineering firm offering comparable services across water/wastewater, civil engineering, architecture, environmental, and surveying. Direct competitor for municipal and institutional clients in the Northeast.
• Boswell Engineering: New Jersey-based engineering firm specializing in civil, structural, environmental, and municipal engineering services. Direct competitor in the same Northeast public sector and private development market, with overlapping expertise in water resources and infrastructure design.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/47344

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Paulus, Sokolowski and Sartor (PS&S)